Hey guys/girls,
I'm designing a VCO using TI's LM13700 (Datasheet below)
http://www.ti.com/lit/ds/symlink/lm13700.pdf
On page 19 there is a pretty good looking schematic. Working the math is no issues, but all the formulas are using Ic and Ia, and to get these I need to know the voltage at the two points I've marked below. Obviously I can't assume their high impedance inputs because that would make the current zero.
If anyone has an answer that would be very helpful, bonus points for resources to learn about TC amps.
Thanks
MH
I'm designing a VCO using TI's LM13700 (Datasheet below)
http://www.ti.com/lit/ds/symlink/lm13700.pdf
On page 19 there is a pretty good looking schematic. Working the math is no issues, but all the formulas are using Ic and Ia, and to get these I need to know the voltage at the two points I've marked below. Obviously I can't assume their high impedance inputs because that would make the current zero.
If anyone has an answer that would be very helpful, bonus points for resources to learn about TC amps.
Thanks
MH